Download Alternative Routes to Oil Structuring by Ashok R. Patel PDF
By Ashok R. Patel
This Springer short provides an outline of contemporary study carried out within the zone of oil structuring beginning with a close advent on oleogelation and homes of food-approved development blocks by means of the dialogue of a few illustrative examples to give an explanation for the processing steps required for developing oleogels, complicated characterization (rheological, thermal and microstructural) and a few strength safe to eat functions of oleogels. The booklet w concludes with a piece summarizing the final directions at the homes of oleogels and essentially of process on the subject of the categorical class of creating blocks used for structuring. The textual content additionally lists a few unresolved demanding situations that must be addressed that allows you to absolutely make the most oleogelation for destiny foodstuff product development.
The practical software of liquid oils in nutrients product improvement is usually entire through structuring them into smooth, plastic-like fabrics. This structuring of oil is typically in keeping with the fats crystal community shaped via excessive melting triacylglycerol (TAG) molecules which are wealthy in trans and/or saturated fatty acids. at present, because of the components equivalent to the requirement for trans- and saturated fat-free meals items, sustainable production and moral alternate practices, the examine within the quarter of settling on alternative ways to grease structuring (in the absence of trans and saturated fat) has been considered as a ‘hot subject’ within the bio-scientific group. Oleogelation (gelling of liquid oil in absence of crystallizable TAGs) is one such substitute, which has lately attracted large awareness from researchers and business scientists operating within the area of meals product improvement. the opportunity of growing dependent gels that comprise a large number of liquid oil (usually above ninety wt%) opens up many probabilities to improve meals items with higher dietary profiles.
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Additional resources for Alternative Routes to Oil Structuring
Gravelle AJ, Barbut S, Marangoni AG (2012) Ethylcellulose oleogels: manufacturing considerations and effects of oil oxidation. Patel AR, Schatteman D, Lesaffer A, Dewettinck K (2013) A foam-templated approach for fabricating organogels using a water-soluble polymer. Patel AR, Cludts N, Bin Sintang MD, Lewille B, Lesaffer A, Dewettinck K (2014) Polysaccharide-based oleogels prepared with an emulsion-templated approach. Patel AR, Rajarethinem PS, Cludts N, Lewille B, De Vos WH, Lesaffer A, Dewettinck K (2015) Biopolymer-based structuring of liquid oil into soft solids and oleogels using watercontinuous emulsions as templates.
As the applied shear increases further, a permanent deformation (yielding) of the materials may occur (G′ = G″) and the corresponding stress value at this point is referred to as oscillatory or dynamic yield stress (τdy) . The τ* represents the onset of nonlinearity (and hence structure breakdown), while τdy represents the transition from solid- to liquid-like behavior and the zone spanning of these two events is referred to as the yield zone [22, 23]. 4. 1). 4b), higher G′LVR value, and higher oscillatory or dynamic yield stress (τdy) in comparison with other gels.
Macromolecules 31(6):1852–1858 Chapter 4 Inorganic Particle-Based Oleogels Abstract Fumed silica has a complex microstructure comprising of micron-sized agglomerates of submicron aggregates of nanosized primary particles. Due to this complex microstructure and interesting surface chemistry, fumed silica is capable of forming oleogels through the formation of a continuous 3D network stabilized by hydrogen bonding among particles. These oleogels can be further combined with weak water gels to create a relatively unexplored class of colloids called bigels.